NO, they do not. That's the simple answer.
Proof and uncirculated coins are valued the same at $15.00
This is only the case for some 1950 British coins. Proof coins should be worth more simply due to the amount of work required to produce them. Proof coins are produced in a finite quantities for a given denomination and year. An "Uncirculated" coin is one that goes through the usual minting process, but is removed before it starts banging and scraping against other coins and developing the marks and scratches associated with circulated coins. Uncirculated coins are an unknown quantity after they leave the Mint since they can be so easily circulated and subsequently lose the grading of "Uncirculated". It is a matter of "supply and demand". Less "Uncirculated" coins for a given denomination (or year) are known to exist than Proof coins of the same denomination (or year), therefore the collector value of the "Uncirculated" coins is greater. The same apparent disparity of value occurs for many coins and years.
Current retail value is the same at $8.00 for uncirculated (D) & proof (S) coins.
In order to determine an estimated value for a roll of American Silver Eagles the dates of the coins would have to be known and if they were mint state [uncirculated] coins or proof coins. American Silver Eagles all have the same bullion value but each has its own numismatic value as well.
Both Proof & Uncirculated coins were issued, the current average retail value is the same at $29.00.
The 1999 Dolly Madison silver dollar was issued from the Philadelphia Mint in Proof & Uncirculated versions. Both are about the same in value, $15.00-$20.00 for most coins.
Proof coins are always worth more than the circulating coins they resemble. Mint collector coins are different than circulating coins and need to be valued differently. Mint coins can come with several various types of surfacing, proof being one, bullion, burnished and brilliant uncirculated the others. The $50 gold coin has no circulating counterpart. It does have a similar brilliant uncirculated counterpart however. While ordinarily proof coins are more valuable than similar brilliant uncirculated coins this is not always the case. The lower amounts of brilliant uncirculated coins minted can cause these to become more valuable than the proof variety for the same year. 1986 had a relatively low minting of brilliant uncirculated collector mint coins and they are, for this and a few other years only, more valuable than the proof varieties. As is always the case with collectible coins, condition affects value. Hence any collectible coin needs an accurate assessment of condition before a specific value can be assigned. Values for these type collector coins are represented in "The Red Book" a semiannually published book listing US coin values.
No. Due to there being sufficient coins already in circulation, the Royal Mint did not produce any 5 Pence coins dated 1993 for general circulation. There were no 10 and 50 Pence or Two Pound coins minted for the same reason. There were some of these coins minted for the various 1993 coin sets, but none for circulation.
The 2008 Bald Eagle $5 dollar gold coin was issued as Proof & Uncirculated, both were struck at the West Point Mint but just the proof coin has the "W" mintmark. Current market value is the same for the coins at $410.00.
Both coins have the same value of $5.00 in uncirculated condition
These coins are still potentially in circulation so, unless they are part of a Proof or Uncirculated mint set or are individual Proof or Uncirculated coins and in absolute mint condition, they are worth 50 Pence.
The San Francisco Mint struck 3 different bicentennial Kennedy halves. A copper-nickel proof, 40% silver proof and a 40% silver uncirculated coin. The C/N proof is $1.05, both 40% coins have the same value of $6.00.